Re: International 656 Hydro

Posted by chadd on April 23, 2007 at 05:38:28 from (155.92.32.116):

In Reply to: International 656 Hydro posted by Crashagn on April 21, 2007 at 09:20:02:

I agree with Allan. IH recommended that you do not operate the hydraulics at lower than 1000 rpm. At the same time, PTO rpm seems a little high for just using a loader. We have a 2500A, and I use about 1200 to 1800 most of the time (PTO is at 2000 or so), unless I am loading someone in a hurry, and don't want to shift gears. As for the cooling of the hydraulic system vs. RPM, I would guess that it is probably a wash. At lower RPM, the flow rate is lower, the pump is putting out less pressure, so you are putting less heat in the fluid, but at the same time, at higher RPM, you are putting more heat into the fluid, but the engine fan is pulling in more air, improving convection.

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